1995
DOI: 10.1016/0040-4039(95)00110-x
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Reactions of episulfonium ions from the sulfenylation of alkenes and from phenylthio migration: Kinetic vs thermodynamic control

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Cited by 20 publications
(11 citation statements)
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“…[38] The parent alkene 87 gives the THF 88 as a single product in 84 % yield; in this case the sulfanyl group is bound to a primary center, in the THP alternative 89 it is bound to a secondary center (Scheme 15 c). [38] The parent alkene 87 gives the THF 88 as a single product in 84 % yield; in this case the sulfanyl group is bound to a primary center, in the THP alternative 89 it is bound to a secondary center (Scheme 15 c).…”
Section: Cyclizations Of 14 Diols: Thfs and Thpsmentioning
confidence: 99%
See 1 more Smart Citation
“…[38] The parent alkene 87 gives the THF 88 as a single product in 84 % yield; in this case the sulfanyl group is bound to a primary center, in the THP alternative 89 it is bound to a secondary center (Scheme 15 c). [38] The parent alkene 87 gives the THF 88 as a single product in 84 % yield; in this case the sulfanyl group is bound to a primary center, in the THP alternative 89 it is bound to a secondary center (Scheme 15 c).…”
Section: Cyclizations Of 14 Diols: Thfs and Thpsmentioning
confidence: 99%
“…[38] The parent alkene 87 gives the THF 88 as a single product in 84 % yield; in this case the sulfanyl group is bound to a primary center, in the THP alternative 89 it is bound to a secondary center (Scheme 15 c). [38] In a similar way, Clive et al have studied the capture of seleniranium ions by oxygen nucleophiles, in this case phenols. Accordingly, the trisubstituted alkene 90 gave only THP 91, which avoids the sulfanyl group occupying a tertiary position (Scheme 15 c).…”
Section: Cyclizations Of 14 Diols: Thfs and Thpsmentioning
confidence: 99%
“…Zusammen mit der Arbeitsgruppe von Fallis haben wir die Sulfenyletherbildung mehrerer 4‐Penten‐1‐ole untersucht 38. Das Ausgangsalken 87 liefert 88 als einziges Produkt in 84 % Ausbeute; die Sulfanylgruppe ist in diesem Fall an ein primäres Kohlenstoffatom gebunden.…”
Section: Cyclisierungen Mit [12]‐rs‐wanderung Unter Verwendung Vonunclassified
“…Unter Berufung auf Baldwins Regeln39 (diese Cyclisierungen laufen kinetisch kontrolliert ab) deutet das Ergebnis dieser Reaktion auf eine reine 5‐ exo‐tet ‐Cyclisierung im Unterschied zu einer gemischten 6‐ exo /7‐ endo‐tet ‐Cyclisierung hin. Entsprechend reagiert das dreifach substituierte Alken 90 ausschließlich zu 91 , in dem eine tertiäre Position der Sulfanylgruppe umgangen wird (Schema ) 38. Clive et al haben in ähnlicher Weise das Abfangen von Seleniraniumionen mit Sauerstoff‐Nucleophilen, in diesem Fall Phenolen, untersucht 40.…”
Section: Cyclisierungen Mit [12]‐rs‐wanderung Unter Verwendung Vonunclassified
“…We have found similar results with related tetrahydropyrans. 15 In conclusion, we have reported a general method for the synthesis of 4-hydroxy-1,2-oxathianes. The cyclisation is stereospecific with retention at all carbon atoms and occurs irrespective of the developing stereochemistry and the structural nature of the cyclising chain (Table 1).…”
mentioning
confidence: 90%